I had a link to 10 songs, but the links were all dead. So I'm going to make my own list of "time travel songs" with yt links for listening ease. Hopefully others will add some of their own favs. ;-)
The avant garde, post-industrial outfit Coil (whose members John Balance and Peter Christopherson are two of my all-time favourite musicians) once released an entire album of lengthy ambient drones entitled
Maybe you can also consider Year 3000 by the Jonas Brothers. "i've been to the year 3000. Not much has changed but they lived underwater.." Haha it's a cute song and I've been a JB fan since I was in high school. Not exactly scientific or anything but still about traveling to the future :LOL: